Porter cable compressor big enough?
by Brian A
HELLO, I have a porter cable pancake style air compressor, specs are :
150 psi max
6 gallon tank
2.6 scfm @ 90 psi
I want to run a sand blasting cabinet , specs are :
5-15 cfm @ 120 psi
Does the porter cable have enough cfm to run the sandblaster ?
_____________________ Bill says...
Nope, not even close.
Read the pages on sizing an air compressor for more details.
draining air by pulling the safety valve scares me
(San Jose, CA)
I'm a newbie about air compressor and I bought a Porter Cable c2002 model.
I decided to break-in the new compressor by opening the drain valve and running the unit for 15 minutes. After I was done, I wanted to release the air.
After reading the instructions listed below, I pull the ring on the safety valve and a LOUD hissing/bang sounds came out. I was so scared that I ran out of the garage. It kept hissing from 150 PSI to 60 PSI. After it stopped, I went back and decided to release the drain valve slowly.
1. Did I do it right? Is that loud sound expected when I pull the safety valve?
2. Can I just open the drain valve instead of using the safety valve because it doesn't make that loud noise? If I can use the drain valve instead of the safety valve, is the drain valve going to lose it's seal and usage?
Thanks in advance,
still afraid of using the safety valve...
Here are the instructions from Porter Cable manual about draining:
1. Set the On/Auto/Off lever to "Off" and unplug unit.
2. Turn the regulator knob counterclockwise to set the outlet pressure to zero.
3. Remove the air tool or accessory.
4. Pull ring on safety valve allowing air to bleed from the tank until tank pressure is approximately 20 psi. Release safety valve ring.
5. Drain water from air tank by opening drain valve (counter-clockwise) on bottom of tank.
Re: 1) Yes, it's loud when you pull the ring on the PRV. I think they want you to use that method of draining the tank as in so doing, you are ensuring that the PRV will operate when it's supposed to. In effect, you are actuating and then closing it, helping to make sure it will be able to cycle on its own should it be required.
Re: 2) Yup, you can, and should, drain the tank using the tank drain valve. Know that most (all?) components in foreign manufactured compressors are the cheapest that money can buy, and so you do run the slight risk of wearing out the drain valve, but you run a similar risk by cycling the PRV frequently too. Both risks are low.
Chris, get in the habit of cycling the PRV once a week or so, even if it's loud. Wear a pair of earplugs and wear a glove on the hand that's pulling the ring. I check mine regularly. I just pull it out for a few seconds, and then push it back in. I don't wait for the air to bleed down to 20. That may be necessary for some PRV's to facilitate them closing properly. I haven't had that issue.
porter cable jet stream cpf23400s blows breaker
I have a porter cable jet stream cpf23400s. It trips the breaker pretty much right on start up. I let a friend use it and it came back to me this way. He said it sparked ( he was using it on a sandblaster cabinet) and a little smoke. I am pretty sure it is the motor, any thought would be great.
Ask your friend what sparked, and where did the smoke come out.
If it is a lubed air compressor, did it come back with the correct amount of oil in the sump?
When it was being used, how long did it run at one time?
If the spark and the smoke came off the motor, then I'm with you, it's probably the motor. The question then is, why did it fail?
Pull the motor and take it to an electric rebuild shop to test and rebuild if possible, but make sure first, that your compressor pump works, and that it's not a seized pump that's stalling the motor and creating the problem.
My porter cable pancake 6 gallons compressor does not restarts
I TURN IT ON AND WHEN THE TANK IS FULL IT STOPS BUT WILL NOT GO ON AGAIN UNLESS I EMPTY THE TANK.
What turns your compressor on (besides plugging it in :-) is the pressure switch.
When the compressor tank is completely empty, as soon as you plug in the compressor, the "low pressure" switch closes, starting the compressor.
When the pressure in the tank reaches the "high pressure" setting, the pressure switch opens the circuit, cutting off the supply of electricity to the motor, and the compressor stops.
When you start using your compressed air the pressure in the tank starts to fall. When it reaches the factory-set "low pressure" point, the pressure switch circuit will close, allow electricity to flow to the electric motor, and your compressor starts adding more air to your tank.
A pressure switch is just that; a switch that reacts to the air pressure in the system. Yours is not doing so.
If your pressure switch fails to start the compressor motor when the pressure in the system falls below the normal cut in point, then I suggest that your pressure switch needs replacement.